CN214805500U - Scaphoid fracture percutaneous screw internal fixation positioning guide device - Google Patents
Scaphoid fracture percutaneous screw internal fixation positioning guide device Download PDFInfo
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- CN214805500U CN214805500U CN202120522703.6U CN202120522703U CN214805500U CN 214805500 U CN214805500 U CN 214805500U CN 202120522703 U CN202120522703 U CN 202120522703U CN 214805500 U CN214805500 U CN 214805500U
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Abstract
The utility model discloses a scaphoid fracture percutaneous screw internal fixation positioning guide device, which belongs to the field of medical devices and comprises a positioning device and a guide device, wherein the positioning device comprises an arm plate, a palm plate and a thumb plate, the palm plate is hinged with the arm plate, a first angle adjusting device is arranged between the palm plate and the arm plate, the thumb plate is hinged with the palm plate, and a second angle adjusting device is arranged between the thumb plate and the palm plate; the guide device is arranged on the arm plate and comprises a first guide arm connected with the arm plate in a rotating mode, a second guide arm connected to the end portion of the first guide arm in a rotating mode, and a guide pin arm sleeved on the end portion of the second guide arm, wherein a guide pin hole is formed in the guide pin arm. The utility model discloses can realize accurate fixed with wrist joint and thumb position to the accurate direction of guide pin, make the operation really reach the time weak point, the ray exposes less, the wound is little, the recovery is fast, and the basic unit hospital of being convenient for uses, is applicable to all scaphoid fracture percutaneous screw internal fixation techniques.
Description
Technical Field
The utility model belongs to the field of medical devices, a positioning and guiding device for operation is related to, in particular to a positioning and guiding device for scaphoid fracture percutaneous screw internal fixation.
Background
Scaphoid fracture is one of the most common fractures of the carpal bones, and is best seen in young men. Necrosis is easily caused due to the special anatomical structure of scaphoid and blood supply condition, such as improper treatment. Wherein, waist fracture accounts for 2/3 of all scaphoid fractures, and in waist fracture, 60-85% of scaphoid fractures without displacement.
If non-operative treatment is adopted for the non-displaced scaphoid fracture, long-time plaster fixation is needed, and the life quality of a patient is seriously affected. Therefore, the effect of the operation treatment of the non-displaced scaphoid fracture is obviously better than that of plaster fixation. The operation treatment mainly comprises incision reduction internal fixation and percutaneous screw internal fixation. The incision reduction internal fixation is that the fracture part is exposed by an operation method, the repair and reduction of the fracture end are performed, the operation visual field can be fully exposed, but the wound is large, the blood supply is easy to damage, and the ligament is damaged. Percutaneous screw internal fixation, namely percutaneous implantation of a compression screw to repair and restore a fractured end, has small incision and small wound and is easy to restore.
In percutaneous screw internal fixation, as the navicular bone is deep and has large mobility, long-time practice and experience summary are needed for accurately placing the screw into the long shaft of the navicular bone, and the operation has certain difficulty. Before operation, the wrist joint is fixed at the palm bent position, the thumb is extended downwards to move the scaphoid to a shallower position, and the guide pin is inserted to provide guidance for accurate insertion of the screw. The accurate placement of the guide pin firstly needs to solve the problem of wrist joint fixation. In the related art, a piece of rolled cloth is mostly padded under the wrist joint, and then the rolled cloth is manually assisted and fixed by an assistant and is placed according to experience by touch typing or under X-ray fluoroscopy. First, this method does not stabilize the wrist joint and may cause deviation in the placement of the lead. Secondly, even though doctors with abundant clinical experience have the situation that the guide needle is repeatedly inserted, the blood circulation of the scaphoid is easy to be damaged if the doctors make blind shots, and the doctors and patients have long exposure time to radiation even have poorer prognosis if the doctors are inserted under X-ray fluoroscopy.
SUMMERY OF THE UTILITY MODEL
For solving the above not enough that exists among the prior art, the utility model aims at providing a boat bone fracture percutaneous screw internal fixation art positioning guide device to reach and effectively be fixed in the operation position with patient's wrist joint, and provide the purpose of direction when the guide pin is put into.
In order to achieve the above object, the utility model adopts the following technical scheme: a scaphoid fracture percutaneous screw internal fixation positioning and guiding device comprises
A positioning device: the positioning device comprises an arm plate for fixing the forearm, a palm plate for fixing the palm and a thumb plate for fixing the thumb, the palm plate is hinged with the arm plate, a first angle adjusting device is arranged between the palm plate and the arm plate, the thumb plate is hinged with the palm plate, and a second angle adjusting device is arranged between the thumb plate and the palm plate;
a guide device: the guide device is arranged on the arm plate and comprises a first guide arm connected with the arm plate in a rotating mode, a second guide arm connected to the end portion of the first guide arm in a rotating mode, and a guide pin arm sleeved on the end portion of the second guide arm, wherein a guide pin hole is formed in the guide pin arm.
As to the utility model limit: the first angle adjusting device comprises a first connecting rod, two ends of the first connecting rod are respectively connected to the palm plate and the arm plate, one end of the first connecting rod is rotatably connected, and the other end of the first connecting rod is slidably connected.
As to the utility model limit: the second angle adjusting device comprises a second connecting rod, one end of the second connecting rod is rotatably connected to the thumb plate, the other end of the second connecting rod is connected to the palm plate through a second sliding block in a sliding mode, a second sliding rail matched with the second sliding block is arranged on the palm plate, and a second screwing screw is arranged on the second sliding block.
As to the utility model limit: the detachable is provided with the palm fixed band on the palm board, along being provided with the fixed orifices of palm width direction equidistant on the palm board, the palm fixed band runs through the fixed orifices, is fixed in the palm on the palm board with the palm.
As to the utility model limit: the one end of second guiding arm orientation first guiding arm is provided with the first regulation lantern ring, the first regulation lantern ring is radially set up along the second guiding arm, the tip of first guiding arm cup joints in first lantern ring to corresponding being provided with spacing arch on first guiding arm, make the second guiding arm can rotate with first guiding arm and be connected.
As a further limitation to the present invention: the first connecting rod is connected with the palm plate in a rotating mode, is connected with the arm plate in a sliding mode through the first sliding block, is provided with a first sliding rail matched with the first sliding block, and is provided with a first screwing screw.
As a further limitation to the present invention: the arm plate is fixedly provided with an arc-shaped block which is attached to the arm of a human body, and the arm plate is fixedly provided with an arm fixing band.
As a further limitation to the present invention: the one end of second guiding arm orientation guide needle arm is provided with the second and adjusts the lantern ring, the second is adjusted the lantern ring and is radially set up along the second guiding arm, the guide pin arm cup joints in the second is adjusted the lantern ring, makes the guide pin arm slide and rotate in the second is adjusted the lantern ring.
As a further limitation to the present invention: and a third screwing screw is arranged on the first adjusting lantern ring.
As to the utility model discloses a further limit again: and a fourth screwing screw is arranged on the second adjusting lantern ring.
Since the technical scheme is used, compared with the prior art, the utility model, the beneficial effect who gains lies in:
(1) the utility model discloses be provided with positioner, positioner includes arm board and palm board, can carry out position adjustment to wrist joint through the contained angle adjustment of arm board and palm board, make the activity of boat bone to shallower position, and it is fixed to the contained angle of arm board and palm board through angle adjusting device, thereby fix wrist position, and still be provided with the thumb board on the palm board, further adjust and fix the position of thumb, guarantee to keep the relative position of arm, palm and thumb unchangeable in the art, provide support for going on smoothly of follow-up direction step;
(2) the palm plate of the utility model is provided with a plurality of fixing holes, and the palm fixing bands are matched with different fixing holes, so that the palm fixing device not only can be suitable for palms with different sizes, but also can adjust the fixing positions of the palms, and realize the fine adjustment of the palm angle;
(3) the utility model discloses still be provided with guider, guider includes first guide arm, second guide arm and guide pin arm, connect the height that can adjust the guide pin hole through the rotation between first guide arm and the second guide arm, through the rotation of guide pin arm and the horizontal position and the turned angle that can adjust the guide pin hole of sliding, make the guide pin hole can adjust to the optional position, and still be provided with the screw of screwing on guider, can fix guider's position, provide stable direction for the guide pin, the time of putting the needle has been shortened, the injury of bringing has been avoided the guide pin to put into repeatedly.
To sum up, the utility model discloses can realize accurate fixed with wrist joint and thumb position to the accurate direction of guide pin, make the operation really reach the time weak point, the ray exposes less, the wound is little, the recovery is fast, and the basic unit hospital of being convenient for uses, is applicable to all scaphoid fracture percutaneous screw internal fixation art.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic perspective view of an embodiment of the present invention;
fig. 3 is a schematic three-dimensional structure diagram of the embodiment of the present invention;
fig. 4 is an enlarged view of a portion a in fig. 1 according to an embodiment of the present invention.
In the figure: 1-arm plate, 2-palm plate, 3-thumb plate, 4-arc block, 5-arm fixing band, 6-palm fixing band, 7-fixing hole, 8-first connecting rod, 9-first sliding block, 10-first sliding rail, 11-first screwing screw, 12-thumb fixing band, 13-second connecting rod, 14-second sliding block, 15-second sliding rail, 16-second screwing screw, 17-first guiding arm, 18-second guiding arm, 19-needle guiding arm, 20-first adjusting lantern ring, 21-third screwing screw, 22-second adjusting lantern ring, 23-fourth screwing screw and 24-needle guiding hole.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the percutaneous screw internal fixation positioning guide for scaphoid fracture described herein is a preferred embodiment, and is provided for illustration and explanation of the present invention only, and does not constitute a limitation of the present invention.
The terms or positional relationships in the directions such as "up", "down", "left" and "right" according to the present invention are based on the positional relationships in the drawings of the present invention, and are only for convenience of description of the present invention and for simplification of description, and are not intended to be specific directions, specific directional structures and operations which the device or element to be indicated or implied must have, and therefore, are not to be construed as limitations to the protection of the present invention.
Embodiment scaphoid fracture percutaneous screw internal fixation positioning guide device
The embodiment is shown in figures 1-4, and is a scaphoid fracture percutaneous screw internal fixation positioning guide device, which comprises a positioning device and a guide device.
The positioning device is used for adjusting and fixing the position relation between the forearm and the palm and between the thumb and the palm. Mainly comprises an arm plate 1 for fixing the forearm, a palm plate 2 for fixing the palm and a thumb plate 3 for fixing the thumb.
The arm plate 1 is of a plate-shaped structure, the arc-shaped block 4 which is attached to the arm of a human body is fixedly arranged on the arm plate 1, the arc-shaped block 4 is concave arc-shaped, the material of the arc-shaped block can be sponge, rubber and the like, so that the arm plate 1 is attached to the arm more comfortably and the use is more comfortable. Still set firmly arm fixed band 5 on arm board 1, arm fixed band 5 is open-ended magic subsides, can make arm board 1 be applicable to the crowd of different arm width, and fixed effect is more firm.
The end part of the arm board 1 is hinged with a palm board 2 for fixing the palm. The palm plate 2 is a plate-shaped structure, and a palm fixing strap 6 is detachably arranged on the palm plate 2. In this embodiment, along being provided with a plurality of fixed orificess 7 of equidistant of palm width direction on palm board 2, palm fixed band 6 runs through fixed orifices 7, is fixed in palm board 2 with the palm on, can be through passing different fixed orifices 7 with palm fixed band 6, make palm board 2 be applicable to the crowd of different palms size, also can adjust the skew angle of palm in the left right direction through this. Certainly also can use the magic to paste as palm fixed band 6, set up the another side that the magic was pasted on palm board 2, through the different positions with palm fixed band 6 laminating at palm board 2, adjust the size and the skew angle of palm fixed band 6.
The armboard 1 is articulated with the palm board 2, and the relative position between the palm and the forearm can be adjusted by adjusting the included angle between the armboard 1 and the palm board 2. As shown in fig. 2, a first angle adjusting means for fixing the relative position is provided between the palm plate 2 and the arm plate 1. The first angle adjusting device comprises a first connecting rod 8, the first connecting rod 8 is arranged on the side surfaces of the palm plate 2 and the arm plate 1, the two ends of the first connecting rod are respectively connected with the palm plate 2 and the arm plate 1, one end of the first connecting rod is rotatably connected, and the other end of the first connecting rod is slidably connected. In this embodiment, the first connecting rod 8 is rotatably connected to the palm plate 2 around the side of the palm plate 2, and is slidably connected to the arm plate 1 along the length direction of the arm plate 1 through the first sliding block 9, that is, one end of the first connecting rod 8 is rotatably connected to the palm plate 2, the other end of the first connecting rod 8 is rotatably connected to the first sliding block 9, and the first sliding block 9 is slidably connected to the arm plate 1 through the first sliding rail 10 disposed on the arm plate 1. The first slide rail 10 is matched with the first slide block 9 in size, and the sliding connection between the first connecting rod 8 and the arm plate 1 is realized through the sliding of the first slide block 9 on the first slide rail 10. The first slider 9 is provided with a first tightening screw 11, and when the angle between the arm plate 1 and the palm plate 2 needs to be adjusted, the first slider 9 is moved. When the angle between the arm plate 1 and the palm plate 2 needs to be fixed, the first screwing screw 11 is screwed, so that the position of the first sliding block 9 on the first sliding rail 10 can be fixed, and the angle between the arm plate 1 and the palm plate 2 can be fixed. Of course, the first connecting rod 8 may be rotatably connected to the arm plate 1 and slidably connected to the palm plate 2 through the first slider 9, and the first slide rail 10 may be correspondingly provided on the palm plate 2.
In order to adjust and fix the position of the thumb, a thumb plate 3 is also articulated on the palm plate 2. The thumb plate 3 is of a plate-shaped structure, a thumb fixing band 12 is arranged on the thumb plate 3, and the thumb fixing band 12 can be a magic tape or an elastic bandage. The relative position of the thumb and the palm can be adjusted by adjusting the included angle between the thumb plate 3 and the palm plate 2. A second angle adjusting means for fixing the relative position is provided between the thumb plate 3 and the palm plate 2.
As shown in fig. 3, the second angle adjusting means includes a second connecting rod 13, and the second connecting rod 13 is disposed on a side of the thumb plate 3 away from the thumb of the patient and a side of the palm plate 2 away from the palm of the patient. One end of the second connecting rod 13 is rotatably connected with the thumb plate 3 around the bottom surface of the thumb plate 3, and the other end is connected with the palm plate 2 in a sliding manner along the width direction of the palm plate 2 through a second sliding block 14. Namely, one end of the second connecting rod 13 is hinged with the thumb plate 3, the other end of the second connecting rod 13 is rotatably connected with the second sliding block 14, and the second sliding block 14 is slidably connected with the palm plate 2 through a second sliding rail 15 arranged on the palm plate 2. The second slide rail 15 is matched with the second slide block 14 in size, and the sliding connection between the second connecting rod 13 and the palm plate 2 is realized through the sliding of the second slide block 14 on the second slide rail 15. The second slider 14 is provided with a second tightening screw 16, and when the angle between the thumb plate 3 and the palm plate 2 needs to be adjusted, the second slider 14 is moved. When the angle between the thumb plate 3 and the palm plate 2 needs to be fixed, the second screwing screw 16 is screwed, so that the position of the second sliding block 14 on the second sliding rail 15 can be fixed, and the angle between the thumb plate 3 and the palm plate 2 can be fixed.
After fixing the wrist and the thumb of the patient, the guide pin needs to be guided, and the embodiment further comprises a guiding device. The guide device is arranged on the armboard 1 and comprises a first guide arm 17 rotationally connected with the armboard 1, a second guide arm 18 rotationally connected with the end part of the first guide arm 17, and a guide pin arm 19 sleeved on the end part of the second guide arm 18.
The first guide arm 17 is a rod-shaped structure, extends from the side of the arm plate 1, and is rotatably connected with the arm plate 1 under the condition that certain resistance exists. A second guide arm 18 is pivotally connected to an end of the first guide arm 17. One end of the second guide arm 18 facing the first guide arm 17 is provided with a first adjusting lantern ring 20, the first adjusting lantern ring 20 is radially arranged along the second guide arm 18, the end part of the first guide arm 17 is sleeved in the first lantern ring, and limiting protrusions are correspondingly arranged on two sides of the first adjusting lantern ring 20 on the first guide arm 17, so that the second guide arm 18 can be rotatably connected with the first guide arm 17. The first adjusting collar 20 is provided with a third tightening screw 21, and after the second guiding arm 18 is adjusted to a proper position, the third tightening screw 21 is tightened to fix the relative position of the second guiding arm 18.
The second guide arm 18 is a rod-shaped structure, one end of the second guide arm 18 facing the needle guide arm 19 is provided with a second adjusting lantern ring 22, the second adjusting lantern ring 22 is arranged along the radial direction of the second guide arm 18, and the needle guide arm 19 is sleeved in the second adjusting lantern ring 22, so that the needle guide arm 19 can slide and rotate in the second adjusting lantern ring 22. The second adjusting collar 22 is provided with a fourth fastening screw 23, and when the position and angle of the needle guide arm 19 are adjusted to be proper, the fourth fastening screw 23 is fastened, so that the relative position of the needle guide arm 19 can be fixed.
As shown in fig. 4, the needle guide arm 19 has a rod-like structure, and the needle guide arm 19 is provided with a needle guide hole 24, and the needle guide hole 24 has a certain length, thereby performing a guiding function.
When the device is used, before an operation, the wrist joint and the thumb of a patient are positioned at a proper operation position through the positioning device and the position is fixed; then, finding a needle placing point and a needle placing direction through X-ray fluoroscopy, adjusting a guide device according to the obtained needle placing point and the obtained needle placing direction until the needle guide hole 24 faces the needle placing point and corresponds to the needle placing direction, fixing the guide device, and withdrawing the fluoroscopy; and finally, placing a guide pin according to the guide device.
The percutaneous screw internal fixation for scaphoid fracture can really achieve the effects of small wound, short time, accurate fixation, quick recovery, less ray exposure and simple and convenient operation, does not need to use complex equipment, and is convenient for primary hospitals to use.
Claims (10)
1. A scaphoid fracture percutaneous screw internal fixation positioning and guiding device is characterized by comprising
A positioning device: the positioning device comprises an arm plate for fixing the forearm, a palm plate for fixing the palm and a thumb plate for fixing the thumb, the palm plate is hinged with the arm plate, a first angle adjusting device is arranged between the palm plate and the arm plate, the thumb plate is hinged with the palm plate, and a second angle adjusting device is arranged between the thumb plate and the palm plate;
a guide device: the guide device is arranged on the arm plate and comprises a first guide arm connected with the arm plate in a rotating mode, a second guide arm connected to the end portion of the first guide arm in a rotating mode, and a guide pin arm sleeved on the end portion of the second guide arm, wherein a guide pin hole is formed in the guide pin arm.
2. The navicular fracture percutaneous screw internal fixation positioning guide device of claim 1, wherein the first angle adjusting means comprises a first connecting rod having both ends respectively connected to the palm plate and the arm plate, wherein one end is a rotational connection and the other end is a sliding connection.
3. The navicular bone fracture percutaneous screw internal fixation positioning guide device as claimed in claim 2, wherein the first connecting rod is rotatably connected to the palm plate and slidably connected to the arm plate through a first slide block, a first slide rail matching with the first slide block is provided on the arm plate, and a first screwing screw is provided on the first slide block.
4. The navicular bone fracture percutaneous screw internal fixation positioning guide device as claimed in claim 1, wherein the second angle adjustment means comprises a second connecting rod, one end of the second connecting rod is rotatably connected to the thumb plate, the other end of the second connecting rod is slidably connected to the palm plate through a second sliding block, a second sliding rail matched with the second sliding block is provided on the palm plate, and a second screwing screw is provided on the second sliding block.
5. The navicular bone fracture percutaneous screw internal fixation positioning guide device as claimed in claim 1, wherein the palm plate is detachably provided with palm fixing straps, the palm plate is provided with fixing holes at equal intervals along the width direction of the palm, and the palm fixing straps penetrate through the fixing holes to fix the palm on the palm plate.
6. The navicular bone fracture percutaneous screw internal fixation positioning and guiding device as claimed in claim 5, wherein the arm plate is fixedly provided with an arc-shaped block which is attached to the arm of the human body, and the arm fixing strap is fixedly provided on the arm plate.
7. The navicular bone fracture percutaneous screw internal fixation positioning guide device as claimed in any one of claims 1 to 6, wherein the second guide arm is provided with a first adjusting collar at one end facing the first guide arm, the first adjusting collar is radially arranged along the second guide arm, the end of the first guide arm is sleeved in the first collar, and a limiting protrusion is correspondingly arranged on the first guide arm, so that the second guide arm can be rotatably connected with the first guide arm.
8. The navicular bone fracture percutaneous screw internal fixation positioning guide device as claimed in claim 7, wherein a second adjusting collar is provided at one end of the second guide arm facing the guide needle arm, the second adjusting collar is radially provided along the second guide arm, and the guide needle arm is sleeved in the second adjusting collar so that the guide needle arm can slide and rotate in the second adjusting collar.
9. The navicular fracture percutaneous screw internal fixation positioning guide device of claim 7, wherein the first adjustment collar is provided with a third tightening screw.
10. The navicular fracture percutaneous screw internal fixation positioning guide device of claim 8, wherein the second adjustment collar is provided with a fourth tightening screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120522703.6U CN214805500U (en) | 2021-03-12 | 2021-03-12 | Scaphoid fracture percutaneous screw internal fixation positioning guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120522703.6U CN214805500U (en) | 2021-03-12 | 2021-03-12 | Scaphoid fracture percutaneous screw internal fixation positioning guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214805500U true CN214805500U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120522703.6U Active CN214805500U (en) | 2021-03-12 | 2021-03-12 | Scaphoid fracture percutaneous screw internal fixation positioning guide device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214805500U (en) |
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2021
- 2021-03-12 CN CN202120522703.6U patent/CN214805500U/en active Active
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